Most insurance plans see this as preventative care to get bloodwork done when you're doing your wellness visit, so, if you have insurance, $0 out of pocket.
In my experience, some doctors won't order hsCRP (the marker we measure) for everyone. If they do, I think it would be rare for insurance to cover it multiple times per year.
Why do we need it multiple times per year? Maybe that's the part that needs to change, so as many people as possible have access to the data?
The idea is that by testing multiple times per year, you get more insight into what may be driving your levels and be able to intervene sooner